Toluene → 2-Methylbuta-1,3-diene;styrene

Reaktionsgleichung

[C:1]1([CH3:7])[CH:6]=CC=[CH:3][CH:2]=1.[CH2:8]=[CH:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.C=CC(=C)C>CO>[CH2:3]=[CH:2][C:1](=[CH2:6])[CH3:7].[CH2:8]=[CH:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1

Komponenten

Versuchsvorschrift

To a 100 ml-flask in a glove box, (C5Me4SiMe3) Sc(CH2SiMe3)2 (THF) (10 mg, 21 μmol) and [Ph3C][B(C6F5)4](19 mg, 21 μmol) were added, and toluene (30 ml) was further added. To the obtained solution a mixture of styrene (2.148 g, 21 mmol) and isoprene (1.431 g, 21 mmol) was added, and the whole was subjected to a polymerization reaction at 25° C. After 12 hours, methanol was added to stop the polymerization reaction. The reaction mixture was poured into methanol (200 ml) to precipitate a polymer. The precipitated polymer was filtrated, and dried at 60° C. under reduced pressure, to thereby obtain 1.64 g of isoprene-styrene copolymer.